| Cd2+对条斑紫菜的胁迫作用 |
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| 引用本文： | 邵世光,阎斌伦,许云华,张雷,郑霞,李廷友.Cd2+对条斑紫菜的胁迫作用[J].河南师范大学学报(自然科学版),2006,34(2):113-116. |
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| 作者姓名： | 邵世光 阎斌伦 许云华 张雷 郑霞 李廷友 |
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| 作者单位： | 淮海工学院,江苏省海洋生物技术重点建设实验室,江苏,连云港,222005;连云港师范高等专科学校,生物系,江苏,连云港,222006;淮海工学院,江苏省海洋生物技术重点建设实验室,江苏,连云港,222005;连云港师范高等专科学校,生物系,江苏,连云港,222006 |
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| 基金项目： | 江苏省教育厅自然科学基金 |
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| 摘 要： | 以条斑紫菜中叶绿素a含量、光合作用强度、SOD活性、POD活性、总抗氧化能力及可溶性蛋白含量等6项指标参数,研究分析了不同浓度Cd2+对条斑紫菜的胁迫作用.结果表明,用较低浓度Cd2+处理时,条斑紫菜的6项指标参数值均较对照组有一定的提高;随着Cd2+处理浓度的增加,6项指标参数值均开始下降,其中,处理浓度为5~100 mg/L时,光合作用强度、POD活性逐渐下降;处理浓度为10~100 mg/L时,叶绿素a含量、SOD活性、总抗氧化能力下降;处理浓度为20~100 mg/L时,可溶性蛋白含量下降.条斑紫菜对Cd2+具有较高的耐受性,但高浓度的Cd2+对条斑紫菜具有明显的胁迫作用.
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| 关 键 词： | 条斑紫菜 Cd2+ 胁迫 |
| 文章编号： | 1000-2367(2006)02-0113-04 |
| 收稿时间： | 2005-09-06 |
| 修稿时间： | 2005年9月6日 |
Effect of Cd2+ Stress on Porphyra Yezoensis |
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| SHAO Shi-guang,YAN Bin-lun,XU Yun-hua,ZHANG Lei,ZHENG Xia,LI Ting-you.Effect of Cd2+ Stress on Porphyra Yezoensis[J].Journal of Henan Normal University(Natural Science),2006,34(2):113-116. |
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| Authors: | SHAO Shi-guang YAN Bin-lun XU Yun-hua ZHANG Lei ZHENG Xia LI Ting-you |
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| Institution: | 1. Jiangsu Key Lab. of Marine Biotechnology,Huaihai Institute of Technology, Lianyungang 222005,China; 2. Department of Biology, Lianyungang Teachers College, Lianyungang 222006,China |
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| Abstract: | This paper analyzes the effect of Cd~(2 ) on 6 parameters of chlorophyll a content,photosythtic intensity,SOD,POD,total antioxicatability and soluble protein contents in Porphyra yezoensis.The result shows that in low Cd~(2 ) concentration treatment,the 6 parameters are increased,but decreased with the increase of Cd~(2 ) treatment concentration.Specifically,when treatment concentration reaches 5~100 mg/L,5~100 mg/L,the intensity of photosynthesis and the activity of POD gradually decline;when treatment concentration 10~100 mg/L,the content of chlorophyll a,the activity of SOD and the omni oxidation resistance decline;when treatment concentration 20~100 mg/L,the content of solubility protein declines.Porphyra yezoensis has a higher tolerance to Cd~(2 ),and stressed in high concentration treatment of Cd~(2 ). |
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| Keywords: | Porphyra yezoensis cadmium stress |
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